How to run a daemon on Ubuntu Server?

Question

ubuntu

There is a VPS, I uploaded a program there that should work all the time.
I connect via PuTTY, I run the program through the terminal window - it works.
I close the window - it turns off (no more changes are written to the database)
How to run the program so that it works regardless of the running terminal on the remote PC?

Answer 1

1) write a service for systemd
2) use tmux or screen ( https://habrahabr.ru/post/126996/ )
3) nohup ./script_name & (the output will go to nohup.out file)